#include "time.h"
#include <stdio.h>
void main()
{
int tol=0;
printf("\n***********catch thirty**********\n");
printf(" Game Begin\n");
randomize();
if (random(2)==1)
tol=input(tol);
while(tol!=30)
    if((tol=copu(tol))==30)
    printf("You lose!\n");
    else
    if ((tol=input(tol))==30)
    printf("I lose!\n");
    printf("*************Game Over************\n");
}
input(t)
int t;
{int a;
do{
    printf("Please count:");
    scanf("Please count:");
    scanf("%d",&a);
    if(a>2 || a<1 || t+a>30)
    printf("Error input,again!");
    else
    printf(" You count: %d\n",t+a);
  }while (a>2 || a<1 ||t+a >30);
return(t+a);
}
copu(s)
    int s;
    {
        int c;
        printf("Computer count:");
        if((s+1)%3==0)
        printf("%d\n",++s);
        else if((s+2)%3==0){
            s+=2;
            printf(" %d\n",s);
        }
        else {
            c=random(2)+1;
            s+=c;
            printf(" %d\n",c);
        }
     return(s);
    }

